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Been awhile but have found out a few months ago the primary problems with the amp. Had it tested /inspected via a local shop ($60) and for about $480 including labor & parts could get it done. Parts found faulty are half of the transistors, some resistors, and basic cleaning (they have a list of...

Thanks. Im going to take a pre-shortcut and take it to the local guru here and give me the low down of what the problem is. I have found a few things but right now I got bigger things to do. He will just charge me for the usual entire evaluation fee for what's needed and what it would take to...

Well yes and as you can see they are not the same numbers ....some have been replaced from factory part numbers ....we don't know if they were left that way during installing them of dented later. Most of us have been around long enough to not assume anything. Born into me in the aviation...

yep some dented in outputs. unit is upside down in that pic. power is on right facing unit when right side up.

Can you see what I see

There is a tech here locally I could take it to ( but I would like to do it myself). He's been here since mid eighties and does hi tech work. Down the street is The Speaker shop...services all brands from Altec to EV. I do my own cone redo while they do the voice coils etc . Time is not on my...

Another question ....based on the data off the amp: about what year was it made > This 700 two has the following info sticker on the inside chassis side panel behind the fuse tb: 700 series Two 1100 Part 300-0053-0 7096 quant 150 unit 71 on transformer 700 serial 10886

Appears you are Multi talented ......a way to save money and be proud of what you can do

I'm sure I can do the work.soldering is one of my specialties.....patience and perfection are in my DNA. Its just a matter of my time, cost, outcome. I have many hobbies that presently involve in resto - moding street hi performance cars, performance engine building, speaker system...

Thats kinda my point to know IF the amp works and or trouble shoot the process to arrive at a point to get it working or to stop and move on. This amp is something back in the 70's that my cousin and I wanted but cost was an issue and at the time we both had good stereo systems and still playing...

Yes I know where they are I had already opened one up. Later will do same for all 4.

Thats to be determine not now thanks

yes

Heres some pics of the 700 series II

That would be good. Looks like you are a JBL fan. I am acquiring some 15's this year. Also I have a stray cat that visits me daily ...looks like your cat in your pic

BTW thanks to all of you for your time and info. Will be following up Monday or soon thereafter Phil

OK, my eyes are telling me to close for tonight. Let me review the manual and the step by step method you are talking about. Sounds like what I have to do a lot of with the electronics on outboard motors and auto engines. In the military in the 60's we had to do all kinds of checks and...

Ok I find looking at the diagrams on age 9 the 700/700b the 700 diagrams shows q07 and g10 but this diagram is for either of the two. So mine is a 700 II series and I think the diagram 2-7 shows the same location for these except as q107 and q110, right?

Define "old blown output"? Talking about the "big caps" ?

Yeah I play 45/33/78 at times and most all the early C pre amps have that feature for phono. I also have audionics pre amp too